Calculator
Deodorant Calculator
A stick runs out on a morning you need it. This calculator works out how long yours lasts, from its size and how much you use, or from how long your last stick lasted.
How long does a stick last, by size?
The stick deodorants in our records run from 2.4 to 3.25 oz. At the two daily amounts the EU consumer safety committee reports, a median of 0.82 g and 1.5 g for the heaviest tenth of users, each size lasts about this long:
| Stick size | Typical use (0.82 g a day) | Heavy use (1.5 g a day) |
|---|---|---|
| 2.4 oz (68 g) | about 83 days | about 45 days |
| 2.6 oz (74 g) | about 90 days | about 49 days |
| 2.65 oz (75 g) | about 92 days | about 50 days |
| 3.25 oz (92 g) | about 112 days | about 61 days |
The figures assume the whole stated net weight gets used. The calculator above does the same math for any size, or works from how long your last stick lasted.
Published
- Sticks per year
- 4.1 sticks
- Reorder interval
- about 90 days
Would rather not track any of this?
STUD is the home reordering system that lets you reorder your exact household products in seconds. Learn more
How we calculate this
- Typical and heavy use
- A study of European consumers using their own products found a median of 0.82 g a day of non-spray deodorant or antiperspirant, and 1.5 g a day for the heaviest tenth of users. The EU's consumer safety committee reports both figures. They describe European adults and non-spray products, so treat them as a starting point and switch to your last stick if you remember how long it lasted. EU Scientific Committee on Consumer Safety, opinion on aluminium in cosmetic products (SCCS/1613/19).
- Stick size
- Defaults to 2.6 oz as a placeholder. Sizes vary by brand, so enter the net weight printed on your own stick. The math assumes the whole stated weight gets used.
- Your last stick
- When you pick it, the calculator uses how long your last stick lasted and ignores the published daily amounts. It assumes the new stick is the same size as the last one.
- Reorder interval
- How long one stick lasts, since you only need one at a time.
Frequently asked questions
- How long does a stick of deodorant last?
- At the median amount European consumers apply, 0.82 g a day, a 2.6 oz stick lasts about 90 days. At 1.5 g a day it lasts about 49. Your own last stick is the better guide if you remember it.
- Does this work for antiperspirant too?
- Yes. The published daily amounts cover non-spray deodorant and antiperspirant together. Sprays are applied differently and are not covered.
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